Ciprofloxacin antibiotic (CP) is one of the antibiotics with broad-spectrum antimicrobial activity that has the highest rate of antibiotic resistance. This antibiotic undergoes incomplete metabolism within the human body and is excreted into the water, resulting in its hazardous biological and ecotoxicological effects. In this study, a novel photocatalyst, comprised of graphitic carbon nitride (g-CN) and Tetrakis(acetonitrile)copper(I)hexafluorophosphate ([(CHCN)Cu]PF), denoted as CuPF/g-CN, was employed for the degradation of ciprofloxacin under visible-light irradiation. The Cu complex, functioning as a co-catalyst, assumes a crucial role in facilitating the efficient separation of photogenerated charges and exhibiting high absorption in the visible-light region. More surprisingly, CuPF/g-CN does surpass by up to 6 times the behavior reached with bare g-CN. The experimental findings indicated that the optimal degradation of ciprofloxacin (CP) occurred after 50 min when using a concentration of 20 mg L CP and a concentration of 0.05 g/L CuPF/g-CN, under a pH of 8. This research offers valuable insights into the advancement of cost-effective co-catalysts that enhance the photocatalytic capabilities of established photocatalysts. It contributes to improving the overall performance and efficiency of these photocatalytic systems.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11382030 | PMC |
| http://dx.doi.org/10.1016/j.heliyon.2024.e35829 | DOI Listing |
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Article Synopsis
- The study investigates the degradation of ciprofloxacin (CIP) using a photocatalyst made from CoFeO@3D-TiO and graphene aerogel, achieving complete removal under specific conditions within 60 minutes while showing high reusability.
- Intermediate products from the degradation process were found to be non-toxic to E. coli, and total organic carbon (TOC) analysis showed 86% mineralization of CIP, indicating successful transformation of non-biological sewage to biodegradable effluent.
- The research emphasizes the effectiveness of photocatalysis over simple adsorption with a significantly faster reaction rate, showcasing the potential environmental benefits of using the synthesized photocatalyst under visible light.
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